Database Engine: 12.2.0.1

For Oracle 12c version 12.2.0.1, Oracle changed the way it releases Oracle Database
updates. Instead of Patch Set Updates (PSUs), Oracle supplies Release Updates (RUs)
and
Release Updates Revisions (RURs). RUs contain optimizer changes, feature additions,
and
security fixes. RURs only contain security fixes for the two preceding quarterly patch
cycles. With this new system, you have more control over the features that you install
with each update.

The naming conventions have also changed for Oracle 12c version 12.2.0.1 versions.
In previous versions, Amazon RDS for Oracle used the PSU naming convention
of oracle-version.vpatch-version. The patch-version corresponded with an Oracle PSU.
For example, in Oracle for Amazon RDS version 12.1.0.2.v13, the v13 part of the version
number corresponds with an Oracle PSU.

Oracle 12c version 12.2.0.1 naming conventions account for both RU and RUR updates.
For example, the first Amazon RDS for Oracle version available is 12.2.0.1.ru-2018-10.rur-2018-10.r1.
In this example, 12.2 is the major version, and 0.1 is the minor version. The revision
version has the following parts: